Error on sql statement

Hello,

When I try :

declare @sql2 varchar(max)
set @sql2 = 'IF exists (select *  from  ['+@SrvAbonne + '].['+ @DbCible + '].dbo.sysobjects where name = ''MSreplication_subscriptions'')
BEGIN
delete from ['+@SrvAbonne + '].['+ @Dbcible + '].dbo.MSreplication_subscriptions
where [publication] like ''' + @publication + ''' end'
execute (@sql2)
print(@sql2)

I have this error:
The OLE DB provider "SQLNCLI" for linked server "SRVTEST" does not contain the table ""TEST"."dbo"."MSreplication_subscriptions"". The table either does not exist or the current user does not have permissions on that table. #7314

I don't understand why because I check 'IF exists (select *  from  ['+@SrvAbonne + '].['+ @DbCible + '].dbo.sysobjects where name = ''MSreplication_subscriptions'')

Thanks

Regards

bibi